Esempio n. 1
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 public void undo()
 {
     currentStereo.on();
     currentStereo.setCD();
     currentStereo.setVolume(11);
 }
Esempio n. 2
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 public void execute()
 {
     currentStereo.on();
     currentStereo.setCD();
     currentStereo.setVolume(11);
 }